Based on the pyrotechnic and powder smoke cloud,the effect of vacuum pressure on the expanding velocity during the smoke cloud forming was studied experimentally with the method of the expansive velocity obtained by testing the increases of the cloud edge size.

Study on IR Extinction Performance of Graphite Micro-powder Smoke in Vacuum;

Study on the Effect of Materials Granularity on Infrared Extinction Capability of Smoke Screen;

Study on Interference Effects of Smoke on Millimeter Wave Radiation of Targets;

were used to measure the camouflaging mass and extinction coefficient of red (phosphorous) smoke screen.

The smoke screen that may absorb and scatter infrared, heavily attenuates energy of guidance head, and then will reduce the probability of missile shooting.

Based on the study of the principle of smoke screen against laser,obscuring performance of smoke screen made up of RP,HC,graphite and other new modified material against 10.

Theoretical Study on Extinction Characters of Non-Spherical Particles and Their Smokescreen;

Cluster-cluster aggregation (CCA) model based on Monte Carlo method is used to simulate the structure of the cluster particles in a smokescreen, and the extinction coefficients and absorption coefficients of the simulated cluster structures are calculated based on the T matrix method.

Based on analyzing atmosphere transportation and diffusion process,this paper studies the application of a diagnosis mode to calculating the wind field of the release district, analyzes the dispersion characteristics of smoke source in the atmosphere, and brings up an imitation model of the dispersion of screening smoke.